4.4 up to 2005 is the BMW engine, 4.2 Normally Aspirated and Supercharged (and a 4.4 fitted to the Range Rover Sport) fitted to later ones are Jaguar/Ford with valve seats made form I can't believe it's not butter.

To Alun I would suspect if a piston has let go so the rod has been running up and down the bore, the bore will have so much damage there isn't enough metal there to bore and fit a liner. Your best bet is going to be a replacement engine.

4.4 up to 2005 is the BMW engine, 4.2 Normally Aspirated and Supercharged (and a 4.4 fitted to the Range Rover Sport) fitted to later ones are Jaguar/Ford with valve seats made form I can't believe it's not butter.

Thanks Gilbert. Is there a way of readily identifying the BMW engine as I have my eye on a 56 Plate HSE which could be just a "last of the line" 4.4 BMW or an incorrectly identified 4.2 "utterly butterly" version. Since it's a fair trek to view it I'd rather be sure it's the right model

New engine is all in now and running perfect. The gas system works flawlessly except for the fuel level gauge goes the wrong way and totally inaccurate. It also seems to take a lot longer to switch over to gas than the gas system installed in my Z4. I have a cable to plug into my zavoli kit on the Z4 but now need a cable to plug into the KME diego kit on the range rover as I just want to check the fuel trims and make small amendments if necessary. What cable should I go for and where is best to get one from?

I'm well over half a century old, but people still suprise me. I'd have thought sourcing a £10 lead would be a good idea before installing a fuel system in a multi£K car, let alone driving around with fingers crossed and no setting up at all - whilst complaining at some of the systems behaviour.

I'd have thought sourcing a £10 lead would be a good idea before installing a fuel system in a multi£K car, let alone driving around with fingers crossed and no setting up at all - whilst complaining at some of the systems behaviour.

Bloomin eck, it does read like Alan installed an LPG system and didn't calibrate it before use.. surprising it works well at all.

Order a cable, Alan, but you might need an OBD live data scan tool to read trims too?

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